Pay with Invoice Number

If you have received your invoice, you can use this form to pay by credit card through PayPal:

Pay without Invoice

If you have just registered for one or more tests and have not received an invoice, but know what your fees are, you can use this form to pay by credit card through PayPal:

Other Payment Methods

To pay by ACH, please email us for our bank details.


To pay by check, please make it payable to HN Proficiency Testing and mail to:

HN Proficiency Testing
8520 Allison Pointe Blvd. Ste. 220
Indianapolis, IN 46250

Please include your invoice number or company name on the check.


To pay with Zelle, scan the QR code below in your banking app.

Zelle QR Code

You can also manually enter hsnielsen@hn-metrology.com as the recipient.
The recipient will be identified as HN Metrology Consulting, Inc.